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Use the Forms API to parse PDFs, fill forms from natural-language instructions, and download completed documents.

API reference

View endpoints, authentication, examples, and the full API workflow.

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Quick start

  1. Parse a PDF: POST /parse with your file
  2. Poll until ready: GET /parse/{job_id}
  3. Fill from a prompt: POST /fill with file_id and instructions
  4. Poll fill status: GET /fill/{job_id}
  5. Download the result from the returned download_url

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Base URL

https://api.sylvian.ai

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Authentication

Use an API key in the X-API-Key header. Create keys in your Sylvian dashboard.